20034142453 has 4 divisors (see below), whose sum is σ = 21575230348. Its totient is φ = 18493054560.

The previous prime is 20034142441. The next prime is 20034142459. The reversal of 20034142453 is 35424143002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12855477924 + 7178664529 = 113382^2 + 84727^2 .

It is a cyclic number.

It is not a de Polignac number, because 20034142453 - 2¹⁷ = 20034011381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20034142459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 770543928 + ... + 770543953.

It is an arithmetic number, because the mean of its divisors is an integer number (5393807587).

Almost surely, 2^20034142453 is an apocalyptic number.

It is an amenable number.

20034142453 is a deficient number, since it is larger than the sum of its proper divisors (1541087895).

20034142453 is a wasteful number, since it uses less digits than its factorization.

20034142453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541087894.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 20034142453 its reverse (35424143002), we get a palindrome (55458285455).

The spelling of 20034142453 in words is "twenty billion, thirty-four million, one hundred forty-two thousand, four hundred fifty-three".